Fastener



F. S. CARR.

FASTENER.

APPLICATION FILED JAN. 31. 1919.

Patented Mar. 30, 1920.

Ivar- &

Invenior: Ens-d 5.6212 2",

' UNITED STATES PATENT OFFICE FRED S. CARR, 0F NEWTON, MASSACHUSETTS. ASSIGNOR TO CARR FASTENER COMPANY,

0F CAMBRIDGE, MASSACHUSETTS, A CORPORATION OF MAINE;

FASTENER.

To all whom it may concern: I Be it known that I, FRED S. Cars, a citizen of the United States, and a resident of Newton, in the county of Middlesex,

Commonwealth of Massachusetts, (whose post-oflice address is care of Carr Fastener Company, Cambridge, Massachusetts,) have invented an Improvement in Fasteners, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like arts.

This invention pertains to separable fasteners, and more particularly, though not exclusively, to one-way or three-side lock fasteners including a stud and socket separable by relative tipping movement in one direction only.

Referring to the drawings A Figure 1 is a front elevation of a preferred form of my invention; Fig. 2 is a vertical section line 2-2 of Fig. 1; and 4 v F i 3 is a transverse section in the plane of F 1g. 1' taken on the line 3-3 of Fig. 2.

In the preferred form of my invention thereof on the selected for illustrative, purposes I have:

shown a stud including a head 4:, a shank 5,

and -a neck portion 6, and providing between.

the head. and the neck relatively abrupt shoulders 7. I have also shown a socket including the casing 8 containing jaws 9,' 10 connected by s ring portions 1 1-11. The socket also pre erably includes a plate '12 having an aperture therein through .which the stud can be entered. The jaws 9, 10 provide between them an aperture 13' 7 adapted to engage and hold the stud by engagement behind the shoulder portion thereof. As previously stated, the shoulders 7 are preferably relatively abrupt, that is,

- so abrupt that the stud can not be withdrawn from the socket rectilinearly by the application of any usual or desirable amount of force. To permit ready separation of stud and socket, I bevel the jaws 9, 10 at one end, preferably as shown adjacent the.

terminal portions thereof, these bevels being numbered 14 and 15. When the socket is tipped relative to the stud, or vice .versa, in the direction of the arrows in Fig. 2, the abrupt shoulders of the stud will come in contact with the inclined surfaces 14, 15, thereby forcing the jaws 9, 10 apart and permitting'separation of stud and socket.

Specification of Letters Patent. Patented Mar, 30, 1920,

Application filed January 31, 1919. Serial No. 274,313.

The stud may be entered in the socket by a direct or rectilinear movement because the rounded head of the stud will wedge apart ture in the back of the socket while leaving free play or freedom of movement to the spring portions 1111, I have provided a projection in the casing 16 of the socket adapted to centrally engage the spring and jaw elements, the projectlon being entered in indentation 17 therein. Thus when the socket is separated from the stud the aperture 13 will always be centered, and at the .same time the springing apart of the jaws and movement of the spring portions 11--11 toward the side of the casing will not be interfered with.

While I have shown and described a preferred form of one embodiment of my invention, it will be understood .that changes involving omission, substitution, alteration and reversal of parts, and even changes in the mode of operation, may bemade without departing from the scope of my invention, which is best defined in the following claims.

Claims:

1. A stud'and socket fastener comprising, in combination, a stud having a head and a neck providing a relatively abrupt shoulder therebetween, and a socket therefor including a casinghaving a stud-receiving aperture and carrying two resiliently supported jaw portions one at each side of'the center of the aperture, said jaw portions being beveled at one end, whereby relative tipping of said stud and socket in a direction to bring said shoulder against the beveled end of said jaw portions mav separate said jaws to permit separation of stud and socket,

while separation of said stud and socket by.

tipping movement in all other directions is prevented.

2. A one-way or ith 'ee-s ide l0ck fastener comprising, in combination, a stud having a head and a neck providin therebetween a relatively abrupt shoul er, and a socket including a casing and two jaws connectedby a flat sheet metal spring portion spaced from the casing throughout substantially its entire periphery, said jawsv providing a stud-receiving aperture between them, and centering means for locating the jaws and the aperture relative to the casing while maintaining free movement of said spring portion.

3. A one-Way or three-side lock socket including a casing and a resilient sheet metal jaw-carryin part contained therein and spaced from t e casin throughout substantially its entire erip ery, said Jaw-carrying part being hel against rotation relative to said casing.

In testimony whereof, I have signed my name to this specification; V FRED S. CARR. 

